Portable safe



FIG. 1 is a perspective view of a portable safe showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front side view thereof;

FIG. 4 is a rear side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view thereof, shown in an open position.

Broken lines are used in the drawings to illustrate features that form no part of the claimed design. 

CLAIM The ornamental design for a portable safe, as shown and described. 